Furnace grate



Dec. 3l, 1929. F. M. KANDLE 1,742,081

FURNACE GRATE Filed March 19. 1928 UMMUUUU mlm-INH wgjlnnnnnnnnn @um v Qrannunnnnun /3 @yl ,nnuunnnnnnnmummwj/f Mnnnnnuu WW1 qnnnnnnnnnnn Lm l f'rnnnnnnnnnnfuwmmn x JU' @@iffmur Patented Dec. 31,1929 i Y UNITED STATES PATENT i FUBMAN M. HANDLE, or ATLANTIC CITY,` NEW JERsirsr'V l FURNACE GRATE y Application mea March 19, i928. serial No. aea'z'a;

. This invention relates'to an improved fur Figure 2-is a partial sectional View on line nace grate, and one which comprises a plu- 2-2 of Figure l rality of tiltable grate bars so connected that Figure 3 is a sectional view on line 3-3 the movement of a member for actuating one of Figure 12; i l 5 grate bar, will operate all the bars in unison Figure t-is" a similar detailed sectional 5' correspondingly, and will in turn cause tilt view showing the bars tilted. ing action of intervening grate bars, which Figure 5`-is asectional view of' a modified are provided with openings, which openings form of the main and auxiliary grate bars, with those in the first grate bars will permit showing the inter-connections` between the the ashes to pass therethrough and into the main and auxiliary bars. 60 ash pit, the latter grate bars resting on and Figure (3l-lisa bottom plan view ofthe aux-` intervening the first grate bars, whereby it is iliary grate,` I possible to burn a fine grade of coal, such as Referring to the drawings?, l identifies a buckwheat and rice coal in furnaces, enmainframe of the grate, which may be any abling the ashes to pass through and yet reshape or size preferably rectangular, and 0.51

tain a substantial bed of hot coals. mounted in bearings in the frame are trans- Another purpose is to provide a furnace verse rocking rodsV 2, on which transverse grate, which is an improvement over the congrate bars 3 are mounted to move with the struction and arrangement of furnace grate rods. Certain ends-of the rods have lateral in the application filed in the name of Furarms 4, which are connected by a bar 5, and `man M. Kandic, August l, 1927, Serial No. `one of the rods, prefer/ably the center one, is i 209,986, which has now maturedinto United squared on` its end to receive a crank` handle States Letters Patent No. 1,728,126, dated notshown whereby the several grate bars-B Se otemherlO, 1929. may be rocked. The fact is the rocking of still further purpose is to provide a furthe center grate bar in turn transmits rocking nace grate wherein the grate bars which rest movement to the other bars; The gratebars on and are disposed intervening the connected 3* have transverse openings and arms 6 and 7 operating grate bars are provided with de to permitthe ashesto pass therethrough when pending fins, which act to keep the grate bars the gra-te bars `are rocked. in position. The fins are in the `form of blades Resting onthe grate bars' and intermediate 80. `extending longitudinally of the auxiliary thetransverse rods'areauxiliary grate bars 8, `grate bars. f which are arcuate or curved in cross section.

. A still `further purpose is a provision and The auxiliary grate bars 8*y have transverse t means interconnecting the auxiliary grate openings 9, which alsoV act to permit the ashes f bars with the main grate bars, in order to in to passY therethrough when the bars are 35?..

sure movement between all the bars. y shaken. Depending from the auxiliary grate It is to be understood that the particulars bars and positioned intermediate the adjaherein given are in no way limitive, and that cent edges of theV gratebars 3 are fins" 10, while still keeping within the scope of the inwhich ,have U-shaped cuts or grooves 11 on p 0 vention, anydesired modification of details their` opposite faces, which are disposed in and proportions may be made in the construcpositions incident to the openings in theauxvtion of the appliance according tocircumiliary grate bars, making it possible to cut stances. the grate bars easily into various lengths. The invention comprises further features For instance in making the auxiliary grate "i5 and combination of parts to be hereinafter bars they may be made of the maximum set forth, shown in the drawings andclaimed. lengthj and to provide for shorter auxiliary In the drawings: x grate bars, they may be: cut at the points Figure l-is a plan view of a main grate of where the openings and the grooves or chana furnace showing the auxiliary grate bars nels 11 occur The openings and the chanin position. nels 11 beingincident to each other provide 100 for less material in cutting through the bars. tions, and means connecting the main and Referring to Figure 5 it Will be noted that auxiliary grate bars.

the main grate bars are slightly modified in shape cross sectionally. These main grate bars 12 have three wings, two of the Wings being arranged at an obtuse anffle instead of the two wings being fiat as in igures 1 to 4, the depending wing extending downwardly from the center part of the grate bar, that is at its rocking point.

In testimony whereof he aiiixes' his signature.

Also in Figure 5 the auxiliary grate bars 13 have a depending fin 14, and they so overlie the two wings of the main grate bar as to impart movement to the auxiliary bars when the main bars are rocked, there being U-shaped couplings 15 carried by the auxiliary grate bars and passing through the openings 16 in certain of the Wings of the main grate bars, thereby inter-connecting the various bars to insure their proper relative movements.

When 011e of the main grate bars is rocked l movement is imparted to the rest of the main bars, and as they operate they kick or engage with the auxiliary bars and impart movement to them, thefins 10 and 14 acting to insure this movement and alsoy act as balance members for the auxiliary bars. Y

The invention having been set forth, what is claimed is:

1. In a furnace grate, the combination with main grate bars with means to operate them in unison, of auxiliary grate bars supported only by the adjacent portions of the main grate bars at points to one side of the centers thereof, and fins depending from the auxiliary rate bars to aid balancing them.

2. In a urnace grate, a plurality of main grate bars including means for imparting rocking movement thereto, a plurality of auxiliary grate barssupported only by the adjacent portions of the main grate bars at points to one side of the centers thereof and designed to be moved by the main grate bars, said auxiliary grate bars having depending fins intervening the adjacent portions of the main grate bars, said auxiliary bars being adapted to agitate the lower part of the bed of the fire, said fins acting as means to balance the auxiliary grate bars in their positions.

3. In a furnace grate, a plurality of main grate bars including means for imparting rocking movement thereto, I a plurality of auxiliary grate bars supported only by the adjacent portions of the main grate bars at points to one side of the centers thereof and designed to be moved by the main grate bars, said auxiliary gratevbars having depending fins intervening the. adjacent portions of the main grate bars, said auxiliary bars being adapted to agitate the lower part of the bed of the fire, said fins acting as means to balance the auxiliary grate bars in their posi- FURMAN M. KANDLE. 

